VGA Vesa DDC显示接口
VGA 是 Video Graphics Adapter(Array) 的缩写,VESA 是 Video Electronics Standards Association 的缩写,DDC 是 Display Data Channel 的缩写,信号类型为模拟类型,显示卡端的接口为 15 针母插座:
显示器连线端的接口为 15 针公插头:
引脚定义 |
Pin | Name | Dir | Description |
---|---|---|---|
1 | RED | | Red Video (75 ohm, 0.7 V p-p) |
2 | GREEN | | Green Video (75 ohm, 0.7 V p-p) |
3 | BLUE | | Blue Video (75 ohm, 0.7 V p-p) |
4 | RES | - | Reserved |
5 | GND | | Ground |
6 | RGND | | Red Ground |
7 | GGND | | Green Ground |
8 | BGND | | Blue Ground |
9 | +5V | | +5 VDC |
10 | SGND | | Sync Ground |
11 | ID0 | | Monitor ID Bit 0 (optional) |
12 | SDA | | DDC Serial Data Line |
13 | HSYNC or CSYNC | | Horizontal Sync (or Composite Sync) |
14 | VSYNC | | Vertical Sync |
15 | SCL | | DDC Data Clock Line |